PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

J343/8Screwdriver,offset

The Stanley Works Dba Stanley Proto · NSN 5120-01-399-9188 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-399-9188 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-399-9188. Primary manufacturer part number: J343/8.
Features
  • Screwdriver,offset — FSC 5120
  • Style Designator: OPPOSITE OFFSET, OPPOSITE ENDS, EACH OFF SET TIPPED
  • Tip Size Designation: 3 AND 4
  • Specification/standard Data: 05047-ASME B107.600 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Tip Type: PHILLIPS CROSS
  • 4 verified cross-references
  • Primary manufacturer: The Stanley Works Dba Stanley Proto
Applications
  • Field maintenance and repair
  • Facility maintenance operations
  • General-purpose hand tools
General Description

The Screwdriver,offset, cataloged under National Stock Number 5120-01-399-9188, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is The Stanley Works Dba Stanley Proto. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-01-399-9188
Primary Part NumberJ343/8
Item NameScrewdriver,offset
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerThe Stanley Works Dba Stanley Proto
StatusCANCELLED
Style DesignatorOPPOSITE OFFSET, OPPOSITE ENDS, EACH OFF SET TIPPED
Tip Size Designation3 AND 4
Specification/standard Data05047-ASME B107.600 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Tip TypePHILLIPS CROSS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
2825-00-146-0129D15-3950PC429T0431 INTERCHANGEABLE
Bucket Assembly
Northrop Grumman Systems Corporation Div Marine Systems
5120-00-242-3268034C INTERCHANGEABLE
Screwdriver,offset
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
5310-00-291-88933438 INTERCHANGEABLE
Washer,flat
Triumph Engine Control Systems Llc
5315-00-341-88453438 INTERCHANGEABLE
Pin,drive,power Actuated
Illinois Tool Works Inc
2990-00-374-8564T-3438 INTERCHANGEABLE
Muffler,exhaust
Cummins Filtration Inc.
3120-00-383-855617557 INTERCHANGEABLE
Bearing,sleeve
Mitsubishi Caterpillar Forklift America, Inc
2520-00-405-1728D3-1011C INTERCHANGEABLE
Shifter Collar
Astec Industries Inc Div Astec Ind.
5950-00-504-73813438 INTERCHANGEABLE
Transformer,power
Precision Electronics, Inc
5120-00-511-6065 INTERCHANGEABLE
Cable Puller
5310-00-805-6890 INTERCHANGEABLE
Washer,flat
Cross-Reference Index
Part NumberManufacturer
3R096 W.w. Grainger, Inc. Div Government Sales Division (USA)
34-3/8 The Stanley Works Dba Stanley Proto (USA)
B107.600 The American Society of Mechanical Engineers (USA)
J343/8 PRIMARY The Stanley Works Dba Stanley Proto (USA)
Related Parts
2825-00-146-0129INTERCHANGEABLE
BUCKET ASSEMBLY
D15-3950PC429T0431
5120-00-242-3268INTERCHANGEABLE
SCREWDRIVER,OFFSET
034C
5310-00-291-8893INTERCHANGEABLE
WASHER,FLAT
3438
5315-00-341-8845INTERCHANGEABLE
PIN,DRIVE,POWER ACTUATED
3438
2990-00-374-8564INTERCHANGEABLE
MUFFLER,EXHAUST
T-3438
3120-00-383-8556INTERCHANGEABLE
BEARING,SLEEVE
17557
2520-00-405-1728INTERCHANGEABLE
SHIFTER COLLAR
D3-1011C
5950-00-504-7381INTERCHANGEABLE
TRANSFORMER,POWER
3438
5120-00-511-6065INTERCHANGEABLE
CABLE PULLER
5310-00-805-6890INTERCHANGEABLE
WASHER,FLAT
7610-01-123-3225INTERCHANGEABLE
SHEET,TECHNICAL
3438
5998-01-239-7827INTERCHANGEABLE
EXTRACTOR,ELECTRICAL CARD
3438

Frequently Asked Questions

What is NSN 5120-01-399-9188?

NSN 5120-01-399-9188 is a Screwdriver,offset, manufactured by The Stanley Works Dba Stanley Proto, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-01-399-9188?

NSN 5120-01-399-9188 has 4 cross-referenced part numbers: 3R096 (W.w. Grainger, Inc. Div Government Sales Division), 34-3/8 (The Stanley Works Dba Stanley Proto), B107.600 (The American Society of Mechanical Engineers), J343/8 (The Stanley Works Dba Stanley Proto).

What NSN replaces 5120-01-399-9188?

There are 12 known substitutes for 5120-01-399-9188: 2825-00-146-0129, 5120-00-242-3268, 5310-00-291-8893 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of J343/8?

Key specifications for J343/8: Style Designator: OPPOSITE OFFSET, OPPOSITE ENDS, EACH OFF SET TIPPED; Tip Size Designation: 3 AND 4; Specification/standard Data: 05047-ASME B107.600 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD; Overall Length: 6.125 INCHES NOMINAL IN. 5 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-01-399-9188 still in active supply?

NSN 5120-01-399-9188 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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